Electric toothbrush



FIG. 1 is a perspective view of a electric toothbrush showing my new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines are for the purpose of illustrating portions of the electric toothbrush that form no part of the claimed design. 

CLAIM The ornamental design for a electric toothbrush, as shown and described. 